全文获取类型
收费全文 | 3187篇 |
免费 | 136篇 |
国内免费 | 1篇 |
出版年
2022年 | 19篇 |
2021年 | 27篇 |
2020年 | 49篇 |
2019年 | 53篇 |
2018年 | 76篇 |
2017年 | 93篇 |
2016年 | 107篇 |
2015年 | 60篇 |
2014年 | 79篇 |
2013年 | 325篇 |
2012年 | 131篇 |
2011年 | 150篇 |
2010年 | 98篇 |
2009年 | 95篇 |
2008年 | 149篇 |
2007年 | 152篇 |
2006年 | 155篇 |
2005年 | 125篇 |
2004年 | 112篇 |
2003年 | 132篇 |
2002年 | 117篇 |
2001年 | 57篇 |
2000年 | 69篇 |
1999年 | 48篇 |
1998年 | 52篇 |
1997年 | 47篇 |
1996年 | 40篇 |
1995年 | 32篇 |
1994年 | 25篇 |
1993年 | 19篇 |
1992年 | 28篇 |
1991年 | 29篇 |
1990年 | 21篇 |
1989年 | 28篇 |
1988年 | 33篇 |
1987年 | 30篇 |
1986年 | 28篇 |
1985年 | 33篇 |
1984年 | 43篇 |
1983年 | 28篇 |
1982年 | 30篇 |
1981年 | 17篇 |
1980年 | 28篇 |
1979年 | 30篇 |
1978年 | 18篇 |
1977年 | 23篇 |
1976年 | 36篇 |
1975年 | 18篇 |
1974年 | 23篇 |
1973年 | 22篇 |
排序方式: 共有3324条查询结果,搜索用时 46 毫秒
121.
Subjects were assigned to use either three or six categories and were given either 5 or 10 trials in a word-sorting task. Subsequent to sorting, they recalled as many words as they could. A measure of sorting consistency showed that the six-category sort was a more difficult task than was the three-category sort. Number of categories did not have a significant effect on recall performance regardless of whether 5 or 10 sorting trials were used. A correlational analysis raised questions about the relationship of the sorting tasks to recall performance and clustering. 相似文献
122.
The effects of stress on trait and state anxiety of emotionally disturbed, normal, and delinquent children were assessed using the State-Trait Anxiety Inventory for Children (STAIC). This scale measures both transitory feelings of apprehension and tension that vary over time as a function of situational stress (A-State) and individual differences in the disposition to experience such anxiety states (A-Trait). Results indicated that A-State increased as a function of stress, whereas A-Trait was relatively stable and impervious to the temporary effects of stress. Use of the STAIC with normal and deviant populations was supported. 相似文献
123.
Three experiments investigated the effect of stimulus probability on same-different classification time. In Experiments I and II, subjects made same responses on the basis of name matches of simultaneously presented letters. Half of the same trials involved letters that were also physically identical. Experiment I showed that the presentation probability of specific letters affected name matches and different responses, but not physical matches. Experiment II varied stimulus contrast as well as probability. Contrast had a main effect but did not interact with probability at any level of processing. In Experiment III, subjects were switched to the physical level of processing. Stimuli that now had the same name but differed in case were called different. In this condition, the probability effects obs(irved in Experiment II disappeared. These results are interpreted as demonstrating that stimulus probability has its effect during the process that derives the name of the stimulus from the visual representation. This process takes place before the name comparison is made, and the name comparison process precedes the determination of the different response. 相似文献
124.
Psychosocial maturity (PSM), assessed by scores on the Inventory of Psychosocial Development, was related to interpersonal behavior. In Experiment I PSM and proportion of attitude similarity was varied using Byrne's attraction paradigm in a between-subjects design. The personality variable failed to affect attraction. In Experiment II PSM and proportion of attitude similarity were manipulated in a within-subjects design. High PSM subjects rated the stranger significantly higher in attraction at high levels of similarity and significantly lower in attraction at low levels of similarity when compared to Low PSM individuals. The results were discussed in terms of design differences in personality research and potential mechanisms by which PSM affects attraction (self-esteem and/or competence). 相似文献
125.
G M Schwartz H S Hoffman C L Stitt R R Marsh 《Journal of experimental psychology. Animal behavior processes》1976,2(1):28-37
Male hooded and albino rats were exposed to a light flash followed at various temporal intervals by a startle-eliciting 117 db. (re 20 muN/m2) burst of white noise. The visual stimulus engendered startle response inhibition (maximally when the lead time was 64-250 msec) as well as startle response latency reduction (maximally when the lead time was 2-8 msec). The temporal functions for the effects of visual stimuli paralleled those previously reported for startle modification by acoustic events. Further study revealed that, given optimal lead times, inhibition is produced reliably by weaker visual stimuli (3 X 10-6 cd-sec/cm2) than latency reduction (3 X 10-4 cd-sec/cm2). This differential sensitivity to visual stimuli is also analogous to previously reported findings for events in the acoustic environment. It reveals that the neural mechanisms that mediate latency reduction and inhibition can be engaged by either acoustic or visual stimulation. 相似文献
126.
Dr. Valerie Klinge Thomas Rodziewicz Linda Schwartz 《Journal of abnormal child psychology》1976,4(1):73-81
The present study compared the WISC and WISC-R on a group of psychiatric adolescent inpatients. The results indicated high intercorrelations between the two test versions but with the correlations linearly related to the changes in content and administration rules of the WISC-R. Analyses of variance indicated that, on the basis of the Full Scale IQ, the WISC is an easier test than the WISC-R.The authors gratefully acknowledge the assistance of Ms. Kathleen Lennox for her aid in data analysis and computer programming. 相似文献
127.
Jeffrey C. Savitsky Roberta Muskin Danita Czyzewski Jerry Eckert 《Journal of abnormal child psychology》1976,4(3):235-241
Male juvenile offenders were asked to evaluate the work of an experimental partner (confederate) who completed a work task four times. The work partner cheated on two trials and did not cheat on two trials while working for a charity (one cheat and one noncheat trial) or for selfish gain (one cheat and one noncheat trial). It was found that subjects rated the work done on cheating trials lower than work done on noncheating trials. In addition, subjects shared less reward money on cheating trials relative to noncheating trials. However, the intentions of the confederate, defined as the reward recipient, failed to affect subjects' judgments. These results were described as supporting previous studies which have indicated that delinquents fail to take account of others' intentions when making moral judgments. 相似文献
128.
Daniel Schwartz 《Journal of applied philosophy》2016,33(4):411-424
Frances Kamm's Principle of Secondary Permissibility (PSP) specifies a class of exceptions to the general rule not to kill as a means. The principle allows us to harm as a means some of those who would have been otherwise harmed as side effects. ‘For example, suppose it is impermissible to paralyze A's legs as a means to a greater good. It would still be permissible to do this as the alternative to permissibly killing A as a mere indirect side effect.’ I argue that, despite of its great appeal, PSP is incorrect; it is simply not true that the victims of substitutive harm are not worse off than they would otherwise permissibly have been. In fact, there is no moral difference between the purportedly substitutive harm licensed by PSP (and its extension) and the standard sort of harming as means repudiated by nonconsequentialists. 相似文献
129.
130.
The detrimental effects of insufficient sleep on emotional functioning have been well established. Total sleep deprivation usually leads to increased anxiety and depressive symptoms the following day. However, no study has yet examined the relationships between unmanipulated partial sleep deprivation and next-day symptoms of anxiety and depression in everyday life, which this study sought to characterize. Participants (N = 94) completed daily diary surveys twice per day for 2 weeks without instructions to alter their sleep in any way. Nights of spontaneous, naturally occurring partial sleep deprivation were followed by increased levels of self-reported symptoms of anxious arousal the next day, but were unrelated to next-day symptoms of anhedonic depression or general distress. The relationship between partial sleep deprivation and next-day anxious arousal was found to be moderated by both baseline depressive symptoms and anxiety such that individuals reporting higher levels of depression or anxiety at baseline showed relatively greater increases in symptoms of anxiety following partial sleep deprivation. These results suggest that partial sleep deprivation occurring in everyday life can lead to higher next-day levels of anxious arousal, a relationship that is particularly deleterious for individuals with higher overall levels of anxiety or depressive symptoms. 相似文献